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Cushion|Lab Grown|IGI

1.33ct F IF Cushion Lab Grown Diamond

ID • F/IF • IGI LG656488124

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG656488124

Diamond specifications and retailer prices

From $323 USD
As of November 6, 2026
Save $1,337 USD (81%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,450 USD at Brilliant Earth · As of October 8, 2026
View at Brilliant Earth

About this 1.33ct lab-grown cushion diamond

This 1.33ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG656488124 or 656488124. Listed at 15 retailers as of November 1, 2026, with a 414% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.33
Carat
F
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle38.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG656488124
Dimensions6.47 × 6.43 × 4.18 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.47 mm6.43 mm1.33 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG656488124
Side View
Table 61.0%Crown 33.6°Girdle: MED-STKPavilion 38.7°Culet: NoneDepth 65.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $2,450 USD|Low: $323 USD|High: $2,450 USD|Avg: $837 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 7, 2026
Retailer 5$323 USD
Retailer 4$357 USD
Retailer 6$375 USD
Retailer 13$480 USD
Retailer 10$515 USD
Retailer 3$584 USD
Retailer 2$605 USD
Retailer 7$625 USD
Retailer 9$876 USD
Retailer 12$891 USD
Retailer 8$1,427 USD
Retailer 11$1,660 USD
Brilliant Earth$2,450 USD

43 data points across 13 retailers

15 retailers$323 USD to $1,660 USD

A
Cheapest Retailer
-
$323 USD
Final sale: no returns
Retailer 2
-
$357 USD
View
Price last confirmed 13 days ago
A
Retailer 3
-
$375 USD
View
A
Retailer 4
-
$480 USD
View
A
Retailer 5
-
$515 USD
View
A
Retailer 6
-
$605 USD
View
A
Retailer 7
-
$610 USD
View
A
Retailer 8
-
$625 USD
View
A
Retailer 9
-
$876 USD
View
A
Retailer 10
-
$891 USD
View
A
Retailer 11
-
$969 USD
View
B+
Retailer 12
-
$1,197 USD
View
B+
Retailer 13
-
$1,427 USD
View
B+
Retailer 14
-
$1,660 USD
View
Most Expensive
Brilliant Earth
21385464A · Oct 8
$2,450 USD
View
Price last confirmed 29 days ago
14 more retailers have this diamond
Prices start from $323 USDSave up to $1,337 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.33ct Cushion
$323 USD